What are two benefits of using the DiffServ model? (Choose two.)
A.
DiffServ is a flow-based architecture.
B.
DiffServ is highly scalable.
C.
DiffServ keeps flow state on each node in the network.
D.
DiffServ supports a large number of service classes.
E.
DiffServ uses repetitive signaling for each flow.
Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_2/qos/configuration/guide/fqos_c/qcfdfsrv.html
Benefits of Implementing Differentiated Services
Use the Implementing DiffServ for End-to-End Quality of Service feature set to implement the Differentiated Services architecture. The benefits of implementing Differentiated Services include the following:
•Reduces the burden on network devices and easily scales as the network grows.
•Allows customers to keep any existing Layer 3 ToS prioritization scheme that may be in use.
•Allows customers to mix DiffServ-compliant devices with any existing ToS-enabled equipment in use.
•Alleviates bottlenecks through efficient management of current corporate network resources.
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